./Ultimate.py --spec /mnt/goblint-svcomp/goblint-bench/bench/concrat/properties/no-data-race.prp --file /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/atomic-gcc.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for data races
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data -tc /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/AutomizerReach.xml -i /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/atomic-gcc.i -s /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d52aabb4805ed842abad650012f022eb5ad30b4152f1619fb6770e179a38276e
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-2329fc7
[2023-10-26 08:36:13,111 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-10-26 08:36:13,113 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-10-26 08:36:13,170 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-10-26 08:36:13,170 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-10-26 08:36:13,172 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-10-26 08:36:13,174 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-10-26 08:36:13,176 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-10-26 08:36:13,177 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-10-26 08:36:13,180 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-10-26 08:36:13,181 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-10-26 08:36:13,183 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-10-26 08:36:13,183 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-10-26 08:36:13,185 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-10-26 08:36:13,186 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-10-26 08:36:13,187 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-10-26 08:36:13,188 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-10-26 08:36:13,189 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-10-26 08:36:13,190 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-10-26 08:36:13,193 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-10-26 08:36:13,194 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-10-26 08:36:13,211 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-10-26 08:36:13,211 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-10-26 08:36:13,212 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-10-26 08:36:13,218 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-10-26 08:36:13,218 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-10-26 08:36:13,219 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-10-26 08:36:13,220 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-10-26 08:36:13,220 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-10-26 08:36:13,221 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-10-26 08:36:13,221 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-10-26 08:36:13,222 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-10-26 08:36:13,223 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-10-26 08:36:13,223 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-10-26 08:36:13,225 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-10-26 08:36:13,225 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2023-10-26 08:36:13,226 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-10-26 08:36:13,226 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-10-26 08:36:13,226 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-10-26 08:36:13,227 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-10-26 08:36:13,227 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-10-26 08:36:13,228 INFO  L101        SettingsManager]: Beginning loading settings from /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-10-26 08:36:13,259 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-10-26 08:36:13,273 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-10-26 08:36:13,274 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-10-26 08:36:13,274 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-10-26 08:36:13,275 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-10-26 08:36:13,275 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-10-26 08:36:13,276 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-10-26 08:36:13,276 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-10-26 08:36:13,276 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-10-26 08:36:13,276 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-10-26 08:36:13,277 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-10-26 08:36:13,277 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2023-10-26 08:36:13,277 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-10-26 08:36:13,277 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-10-26 08:36:13,277 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-10-26 08:36:13,278 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-10-26 08:36:13,278 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-10-26 08:36:13,278 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-10-26 08:36:13,278 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2023-10-26 08:36:13,278 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-10-26 08:36:13,279 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-10-26 08:36:13,279 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-10-26 08:36:13,279 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-10-26 08:36:13,279 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-10-26 08:36:13,279 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-10-26 08:36:13,279 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-10-26 08:36:13,280 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-26 08:36:13,280 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-10-26 08:36:13,280 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-10-26 08:36:13,280 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-10-26 08:36:13,280 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-10-26 08:36:13,281 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-10-26 08:36:13,281 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-10-26 08:36:13,281 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-10-26 08:36:13,282 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-10-26 08:36:13,282 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-10-26 08:36:13,282 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-10-26 08:36:13,282 INFO  L138        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d52aabb4805ed842abad650012f022eb5ad30b4152f1619fb6770e179a38276e
[2023-10-26 08:36:13,638 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-10-26 08:36:13,661 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-10-26 08:36:13,667 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-10-26 08:36:13,668 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-10-26 08:36:13,668 INFO  L275        PluginConnector]: CDTParser initialized
[2023-10-26 08:36:13,669 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/atomic-gcc.i
[2023-10-26 08:36:15,421 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-10-26 08:36:15,810 INFO  L351              CDTParser]: Found 1 translation units.
[2023-10-26 08:36:15,811 INFO  L172              CDTParser]: Scanning /mnt/goblint-svcomp/goblint-bench/bench/concrat/race-challenges/atomic-gcc.i
[2023-10-26 08:36:15,842 INFO  L394              CDTParser]: About to delete temporary CDT project at /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/6f81ab2f1/44950e6470054a29b5dd96502b51c659/FLAG08ce1b63c
[2023-10-26 08:36:15,859 INFO  L402              CDTParser]: Successfully deleted /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/data/6f81ab2f1/44950e6470054a29b5dd96502b51c659
[2023-10-26 08:36:15,861 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-10-26 08:36:15,862 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-10-26 08:36:15,865 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-10-26 08:36:15,873 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-10-26 08:36:15,876 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-10-26 08:36:15,876 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:15" (1/1) ...
[2023-10-26 08:36:15,878 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13434333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:15, skipping insertion in model container
[2023-10-26 08:36:15,878 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:15" (1/1) ...
[2023-10-26 08:36:15,890 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-10-26 08:36:15,962 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-10-26 08:36:16,218 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-10-26 08:36:16,476 WARN  L611        FunctionHandler]: implicit declaration of function __sync_fetch_and_add
[2023-10-26 08:36:16,512 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-26 08:36:16,532 INFO  L203         MainTranslator]: Completed pre-run
[2023-10-26 08:36:16,562 WARN  L611        FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-10-26 08:36:16,580 WARN  L611        FunctionHandler]: implicit declaration of function __sync_fetch_and_add
[2023-10-26 08:36:16,608 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2023-10-26 08:36:16,686 INFO  L208         MainTranslator]: Completed translation
[2023-10-26 08:36:16,689 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16 WrapperNode
[2023-10-26 08:36:16,689 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-10-26 08:36:16,690 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-10-26 08:36:16,694 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-10-26 08:36:16,694 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2023-10-26 08:36:16,699 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,726 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,779 INFO  L138                Inliner]: procedures = 269, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77
[2023-10-26 08:36:16,788 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-10-26 08:36:16,789 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-10-26 08:36:16,789 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-10-26 08:36:16,790 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-10-26 08:36:16,799 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,799 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,816 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,816 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,822 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,846 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,848 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,849 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,855 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-10-26 08:36:16,855 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-10-26 08:36:16,855 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-10-26 08:36:16,855 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-10-26 08:36:16,856 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (1/1) ...
[2023-10-26 08:36:16,860 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-10-26 08:36:16,880 INFO  L189       MonitoredProcess]: No working directory specified, using /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3
[2023-10-26 08:36:16,955 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-10-26 08:36:16,987 INFO  L327       MonitoredProcess]: [MP /mnt/goblint-svcomp/benchexec/tools-pldi/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-10-26 08:36:17,092 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-10-26 08:36:17,109 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-10-26 08:36:17,109 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-10-26 08:36:17,109 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-10-26 08:36:17,110 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-10-26 08:36:17,110 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-10-26 08:36:17,110 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-10-26 08:36:17,110 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-10-26 08:36:17,110 INFO  L130     BoogieDeclarations]: Found specification of procedure __sync_fetch_and_add
[2023-10-26 08:36:17,110 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-10-26 08:36:17,110 INFO  L130     BoogieDeclarations]: Found specification of procedure thread
[2023-10-26 08:36:17,110 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread
[2023-10-26 08:36:17,111 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-10-26 08:36:17,111 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-10-26 08:36:17,112 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2023-10-26 08:36:17,345 INFO  L235             CfgBuilder]: Building ICFG
[2023-10-26 08:36:17,346 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-10-26 08:36:17,710 INFO  L276             CfgBuilder]: Performing block encoding
[2023-10-26 08:36:17,726 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-10-26 08:36:17,726 INFO  L300             CfgBuilder]: Removed 2 assume(true) statements.
[2023-10-26 08:36:17,728 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:17 BoogieIcfgContainer
[2023-10-26 08:36:17,728 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-10-26 08:36:17,729 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-10-26 08:36:17,737 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-10-26 08:36:17,740 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-10-26 08:36:17,741 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:36:15" (1/3) ...
[2023-10-26 08:36:17,741 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4194e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:17, skipping insertion in model container
[2023-10-26 08:36:17,741 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:16" (2/3) ...
[2023-10-26 08:36:17,742 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4194e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:17, skipping insertion in model container
[2023-10-26 08:36:17,742 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:17" (3/3) ...
[2023-10-26 08:36:17,743 INFO  L112   eAbstractionObserver]: Analyzing ICFG atomic-gcc.i
[2023-10-26 08:36:17,755 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-10-26 08:36:17,768 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-10-26 08:36:17,768 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2023-10-26 08:36:17,768 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-10-26 08:36:17,876 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2023-10-26 08:36:17,940 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 92 places, 93 transitions, 194 flow
[2023-10-26 08:36:18,037 INFO  L130       PetriNetUnfolder]: 6/139 cut-off events.
[2023-10-26 08:36:18,037 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-26 08:36:18,046 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 145 conditions, 139 events. 6/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 233 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 73. Up to 4 conditions per place. 
[2023-10-26 08:36:18,046 INFO  L82        GeneralOperation]: Start removeDead. Operand has 92 places, 93 transitions, 194 flow
[2023-10-26 08:36:18,050 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 83 places, 84 transitions, 176 flow
[2023-10-26 08:36:18,061 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:36:18,068 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 84 transitions, 176 flow
[2023-10-26 08:36:18,086 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 84 transitions, 176 flow
[2023-10-26 08:36:18,086 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 83 places, 84 transitions, 176 flow
[2023-10-26 08:36:18,155 INFO  L130       PetriNetUnfolder]: 6/121 cut-off events.
[2023-10-26 08:36:18,167 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-26 08:36:18,169 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 127 conditions, 121 events. 6/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 158 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. 
[2023-10-26 08:36:18,170 INFO  L119        LiptonReduction]: Number of co-enabled transitions 528
[2023-10-26 08:36:22,710 INFO  L134        LiptonReduction]: Checked pairs total: 467
[2023-10-26 08:36:22,710 INFO  L136        LiptonReduction]: Total number of compositions: 86
[2023-10-26 08:36:22,730 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:36:22,736 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32cdd6cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:36:22,737 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:36:22,739 INFO  L130       PetriNetUnfolder]: 0/3 cut-off events.
[2023-10-26 08:36:22,739 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:36:22,740 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:22,740 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-26 08:36:22,741 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:22,744 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:22,757 INFO  L85        PathProgramCache]: Analyzing trace with hash 10618, now seen corresponding path program 1 times
[2023-10-26 08:36:22,765 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:22,766 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105978851]
[2023-10-26 08:36:22,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:22,766 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:22,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:36:23,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:36:23,046 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:36:23,047 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105978851]
[2023-10-26 08:36:23,048 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105978851] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:36:23,048 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:36:23,048 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-26 08:36:23,049 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033824865]
[2023-10-26 08:36:23,066 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:36:23,072 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-26 08:36:23,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:36:23,118 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-26 08:36:23,119 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-26 08:36:23,121 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 88 out of 179
[2023-10-26 08:36:23,123 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 36 flow. Second operand  has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:23,123 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:36:23,124 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 179
[2023-10-26 08:36:23,124 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:36:23,178 INFO  L130       PetriNetUnfolder]: 5/22 cut-off events.
[2023-10-26 08:36:23,179 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2023-10-26 08:36:23,179 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 50 conditions, 22 events. 5/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 4 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 26. Up to 21 conditions per place. 
[2023-10-26 08:36:23,180 INFO  L137   encePairwiseOnDemand]: 175/179 looper letters, 5 selfloop transitions, 0 changer transitions 4/10 dead transitions.
[2023-10-26 08:36:23,180 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 10 transitions, 46 flow
[2023-10-26 08:36:23,181 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-26 08:36:23,183 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-26 08:36:23,206 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 189 transitions.
[2023-10-26 08:36:23,208 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5279329608938548
[2023-10-26 08:36:23,209 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 189 transitions.
[2023-10-26 08:36:23,209 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 189 transitions.
[2023-10-26 08:36:23,211 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:36:23,212 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 189 transitions.
[2023-10-26 08:36:23,217 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:23,222 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:23,222 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:23,224 INFO  L175             Difference]: Start difference. First operand has 16 places, 14 transitions, 36 flow. Second operand 2 states and 189 transitions.
[2023-10-26 08:36:23,237 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 10 transitions, 46 flow
[2023-10-26 08:36:23,238 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 10 transitions, 46 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:36:23,239 INFO  L231             Difference]: Finished difference. Result has 13 places, 6 transitions, 17 flow
[2023-10-26 08:36:23,241 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=17, PETRI_PLACES=13, PETRI_TRANSITIONS=6}
[2023-10-26 08:36:23,245 INFO  L288   CegarLoopForPetriNet]: 16 programPoint places, -3 predicate places.
[2023-10-26 08:36:23,245 INFO  L495      AbstractCegarLoop]: Abstraction has has 13 places, 6 transitions, 17 flow
[2023-10-26 08:36:23,246 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:23,246 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:23,247 INFO  L209   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-10-26 08:36:23,249 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-10-26 08:36:23,249 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:23,250 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:23,250 INFO  L85        PathProgramCache]: Analyzing trace with hash 1223619403, now seen corresponding path program 1 times
[2023-10-26 08:36:23,250 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:23,250 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094652299]
[2023-10-26 08:36:23,251 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:23,251 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:23,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:23,380 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:36:23,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:23,454 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:36:23,455 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:36:23,456 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:36:23,472 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:36:23,472 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:36:23,473 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:36:23,473 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:36:23,473 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-10-26 08:36:23,473 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-26 08:36:23,485 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:36:23,485 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-10-26 08:36:23,508 INFO  L144    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-10-26 08:36:23,512 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 101 places, 101 transitions, 220 flow
[2023-10-26 08:36:23,589 INFO  L130       PetriNetUnfolder]: 11/243 cut-off events.
[2023-10-26 08:36:23,589 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-26 08:36:23,591 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 257 conditions, 243 events. 11/243 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 482 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 141. Up to 8 conditions per place. 
[2023-10-26 08:36:23,591 INFO  L82        GeneralOperation]: Start removeDead. Operand has 101 places, 101 transitions, 220 flow
[2023-10-26 08:36:23,592 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 92 places, 92 transitions, 202 flow
[2023-10-26 08:36:23,592 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:36:23,593 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 92 transitions, 202 flow
[2023-10-26 08:36:23,593 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 92 transitions, 202 flow
[2023-10-26 08:36:23,593 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 202 flow
[2023-10-26 08:36:23,615 INFO  L130       PetriNetUnfolder]: 11/207 cut-off events.
[2023-10-26 08:36:23,620 INFO  L131       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2023-10-26 08:36:23,620 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 221 conditions, 207 events. 11/207 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 123. Up to 8 conditions per place. 
[2023-10-26 08:36:23,638 INFO  L119        LiptonReduction]: Number of co-enabled transitions 1284
[2023-10-26 08:36:27,107 INFO  L134        LiptonReduction]: Checked pairs total: 1336
[2023-10-26 08:36:27,108 INFO  L136        LiptonReduction]: Total number of compositions: 91
[2023-10-26 08:36:27,109 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:36:27,110 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32cdd6cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:36:27,110 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:36:27,111 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-26 08:36:27,111 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:36:27,111 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:27,111 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-26 08:36:27,112 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:27,112 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:27,112 INFO  L85        PathProgramCache]: Analyzing trace with hash 17015, now seen corresponding path program 1 times
[2023-10-26 08:36:27,112 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:27,112 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540195074]
[2023-10-26 08:36:27,112 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:27,112 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:27,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:36:27,168 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:36:27,174 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:36:27,175 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540195074]
[2023-10-26 08:36:27,175 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540195074] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:36:27,175 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:36:27,176 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-26 08:36:27,176 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421488047]
[2023-10-26 08:36:27,176 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:36:27,176 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-26 08:36:27,177 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:36:27,177 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-26 08:36:27,177 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-26 08:36:27,178 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 94 out of 192
[2023-10-26 08:36:27,179 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 56 flow. Second operand  has 2 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:27,180 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:36:27,180 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 192
[2023-10-26 08:36:27,180 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:36:27,222 INFO  L130       PetriNetUnfolder]: 30/83 cut-off events.
[2023-10-26 08:36:27,222 INFO  L131       PetriNetUnfolder]: For 14/14 co-relation queries the response was YES.
[2023-10-26 08:36:27,224 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 178 conditions, 83 events. 30/83 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 202 event pairs, 26 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 55. Up to 74 conditions per place. 
[2023-10-26 08:36:27,224 INFO  L137   encePairwiseOnDemand]: 188/192 looper letters, 7 selfloop transitions, 0 changer transitions 6/15 dead transitions.
[2023-10-26 08:36:27,224 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 15 transitions, 72 flow
[2023-10-26 08:36:27,225 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-26 08:36:27,225 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-26 08:36:27,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 204 transitions.
[2023-10-26 08:36:27,229 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.53125
[2023-10-26 08:36:27,229 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 204 transitions.
[2023-10-26 08:36:27,230 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 204 transitions.
[2023-10-26 08:36:27,230 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:36:27,230 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 204 transitions.
[2023-10-26 08:36:27,232 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 102.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:27,236 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:27,237 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:27,237 INFO  L175             Difference]: Start difference. First operand has 22 places, 19 transitions, 56 flow. Second operand 2 states and 204 transitions.
[2023-10-26 08:36:27,251 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 15 transitions, 72 flow
[2023-10-26 08:36:27,252 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 72 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:36:27,253 INFO  L231             Difference]: Finished difference. Result has 19 places, 9 transitions, 30 flow
[2023-10-26 08:36:27,253 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=30, PETRI_PLACES=19, PETRI_TRANSITIONS=9}
[2023-10-26 08:36:27,254 INFO  L288   CegarLoopForPetriNet]: 22 programPoint places, -3 predicate places.
[2023-10-26 08:36:27,254 INFO  L495      AbstractCegarLoop]: Abstraction has has 19 places, 9 transitions, 30 flow
[2023-10-26 08:36:27,254 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:27,254 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:27,255 INFO  L209   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-10-26 08:36:27,255 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-10-26 08:36:27,255 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:27,255 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:27,256 INFO  L85        PathProgramCache]: Analyzing trace with hash 1250201496, now seen corresponding path program 1 times
[2023-10-26 08:36:27,256 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:27,256 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208001847]
[2023-10-26 08:36:27,256 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:27,256 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:27,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:27,307 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:36:27,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:27,371 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:36:27,371 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:36:27,371 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:36:27,371 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:36:27,372 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:36:27,372 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:36:27,372 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:36:27,372 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-10-26 08:36:27,372 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-26 08:36:27,373 WARN  L233   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:36:27,373 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-10-26 08:36:27,412 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-10-26 08:36:27,423 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 110 places, 109 transitions, 248 flow
[2023-10-26 08:36:27,484 INFO  L130       PetriNetUnfolder]: 21/426 cut-off events.
[2023-10-26 08:36:27,485 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-10-26 08:36:27,486 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 454 conditions, 426 events. 21/426 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1128 event pairs, 1 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 251. Up to 16 conditions per place. 
[2023-10-26 08:36:27,486 INFO  L82        GeneralOperation]: Start removeDead. Operand has 110 places, 109 transitions, 248 flow
[2023-10-26 08:36:27,487 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 101 places, 100 transitions, 230 flow
[2023-10-26 08:36:27,487 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:36:27,490 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 100 transitions, 230 flow
[2023-10-26 08:36:27,490 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 100 transitions, 230 flow
[2023-10-26 08:36:27,490 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 101 places, 100 transitions, 230 flow
[2023-10-26 08:36:27,537 INFO  L130       PetriNetUnfolder]: 21/354 cut-off events.
[2023-10-26 08:36:27,553 INFO  L131       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2023-10-26 08:36:27,554 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 382 conditions, 354 events. 21/354 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 757 event pairs, 1 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 215. Up to 16 conditions per place. 
[2023-10-26 08:36:27,556 INFO  L119        LiptonReduction]: Number of co-enabled transitions 2088
[2023-10-26 08:36:31,013 INFO  L134        LiptonReduction]: Checked pairs total: 2118
[2023-10-26 08:36:31,013 INFO  L136        LiptonReduction]: Total number of compositions: 96
[2023-10-26 08:36:31,014 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:36:31,015 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32cdd6cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:36:31,015 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:36:31,016 INFO  L130       PetriNetUnfolder]: 0/3 cut-off events.
[2023-10-26 08:36:31,016 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:36:31,016 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:31,016 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-26 08:36:31,017 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:31,017 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:31,017 INFO  L85        PathProgramCache]: Analyzing trace with hash 23834, now seen corresponding path program 1 times
[2023-10-26 08:36:31,037 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:31,037 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281788431]
[2023-10-26 08:36:31,038 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:31,038 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:31,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:36:31,063 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:36:31,075 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:36:31,076 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281788431]
[2023-10-26 08:36:31,078 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281788431] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:36:31,079 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:36:31,079 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-26 08:36:31,079 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490808451]
[2023-10-26 08:36:31,079 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:36:31,080 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-26 08:36:31,080 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:36:31,080 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-26 08:36:31,081 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-26 08:36:31,082 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 100 out of 205
[2023-10-26 08:36:31,083 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 74 flow. Second operand  has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:31,083 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:36:31,083 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 205
[2023-10-26 08:36:31,083 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:36:31,165 INFO  L130       PetriNetUnfolder]: 128/273 cut-off events.
[2023-10-26 08:36:31,165 INFO  L131       PetriNetUnfolder]: For 73/73 co-relation queries the response was YES.
[2023-10-26 08:36:31,167 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 586 conditions, 273 events. 128/273 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 960 event pairs, 115 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 180. Up to 246 conditions per place. 
[2023-10-26 08:36:31,167 INFO  L137   encePairwiseOnDemand]: 201/205 looper letters, 9 selfloop transitions, 0 changer transitions 7/18 dead transitions.
[2023-10-26 08:36:31,168 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 96 flow
[2023-10-26 08:36:31,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-26 08:36:31,168 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-26 08:36:31,169 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 219 transitions.
[2023-10-26 08:36:31,169 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5341463414634147
[2023-10-26 08:36:31,169 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 219 transitions.
[2023-10-26 08:36:31,169 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 219 transitions.
[2023-10-26 08:36:31,169 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:36:31,169 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 219 transitions.
[2023-10-26 08:36:31,170 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 109.5) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:31,172 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:31,172 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:31,172 INFO  L175             Difference]: Start difference. First operand has 26 places, 22 transitions, 74 flow. Second operand 2 states and 219 transitions.
[2023-10-26 08:36:31,172 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 96 flow
[2023-10-26 08:36:31,175 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 96 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:36:31,189 INFO  L231             Difference]: Finished difference. Result has 23 places, 11 transitions, 43 flow
[2023-10-26 08:36:31,189 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=43, PETRI_PLACES=23, PETRI_TRANSITIONS=11}
[2023-10-26 08:36:31,191 INFO  L288   CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places.
[2023-10-26 08:36:31,191 INFO  L495      AbstractCegarLoop]: Abstraction has has 23 places, 11 transitions, 43 flow
[2023-10-26 08:36:31,193 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:31,193 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:31,193 INFO  L209   CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2023-10-26 08:36:31,193 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-10-26 08:36:31,193 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:31,193 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:31,194 INFO  L85        PathProgramCache]: Analyzing trace with hash 1739823838, now seen corresponding path program 1 times
[2023-10-26 08:36:31,194 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:31,196 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377663416]
[2023-10-26 08:36:31,196 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:31,196 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:31,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:31,338 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:36:31,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:31,384 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:36:31,384 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:36:31,384 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:36:31,385 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:36:31,385 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:36:31,385 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:36:31,385 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:36:31,385 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-10-26 08:36:31,385 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-26 08:36:31,386 WARN  L233   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:36:31,386 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2023-10-26 08:36:31,414 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-10-26 08:36:31,418 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 119 places, 117 transitions, 278 flow
[2023-10-26 08:36:31,532 INFO  L130       PetriNetUnfolder]: 43/769 cut-off events.
[2023-10-26 08:36:31,532 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-10-26 08:36:31,533 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 824 conditions, 769 events. 43/769 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2858 event pairs, 6 based on Foata normal form. 0/673 useless extension candidates. Maximal degree in co-relation 446. Up to 32 conditions per place. 
[2023-10-26 08:36:31,533 INFO  L82        GeneralOperation]: Start removeDead. Operand has 119 places, 117 transitions, 278 flow
[2023-10-26 08:36:31,550 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 110 places, 108 transitions, 260 flow
[2023-10-26 08:36:31,550 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:36:31,550 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 108 transitions, 260 flow
[2023-10-26 08:36:31,551 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 108 transitions, 260 flow
[2023-10-26 08:36:31,551 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 110 places, 108 transitions, 260 flow
[2023-10-26 08:36:31,640 INFO  L130       PetriNetUnfolder]: 43/625 cut-off events.
[2023-10-26 08:36:31,640 INFO  L131       PetriNetUnfolder]: For 48/48 co-relation queries the response was YES.
[2023-10-26 08:36:31,641 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 680 conditions, 625 events. 43/625 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1950 event pairs, 6 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 374. Up to 32 conditions per place. 
[2023-10-26 08:36:31,645 INFO  L119        LiptonReduction]: Number of co-enabled transitions 3000
[2023-10-26 08:36:35,218 INFO  L134        LiptonReduction]: Checked pairs total: 2808
[2023-10-26 08:36:35,218 INFO  L136        LiptonReduction]: Total number of compositions: 102
[2023-10-26 08:36:35,219 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:36:35,220 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32cdd6cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:36:35,220 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:36:35,221 INFO  L130       PetriNetUnfolder]: 0/3 cut-off events.
[2023-10-26 08:36:35,221 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:36:35,221 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:35,221 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-26 08:36:35,221 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:35,221 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:35,221 INFO  L85        PathProgramCache]: Analyzing trace with hash 31097, now seen corresponding path program 1 times
[2023-10-26 08:36:35,222 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:35,222 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072227835]
[2023-10-26 08:36:35,222 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:35,222 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:35,245 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:36:35,249 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:36:35,265 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:36:35,265 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072227835]
[2023-10-26 08:36:35,266 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072227835] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:36:35,266 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:36:35,266 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-26 08:36:35,266 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853627924]
[2023-10-26 08:36:35,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:36:35,266 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-26 08:36:35,266 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:36:35,267 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-26 08:36:35,267 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-26 08:36:35,268 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 106 out of 219
[2023-10-26 08:36:35,268 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 94 flow. Second operand  has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:35,268 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:36:35,268 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 219
[2023-10-26 08:36:35,268 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:36:35,424 INFO  L130       PetriNetUnfolder]: 482/877 cut-off events.
[2023-10-26 08:36:35,424 INFO  L131       PetriNetUnfolder]: For 296/296 co-relation queries the response was YES.
[2023-10-26 08:36:35,425 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1888 conditions, 877 events. 482/877 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3746 event pairs, 442 based on Foata normal form. 0/845 useless extension candidates. Maximal degree in co-relation 593. Up to 802 conditions per place. 
[2023-10-26 08:36:35,426 INFO  L137   encePairwiseOnDemand]: 215/219 looper letters, 11 selfloop transitions, 0 changer transitions 8/21 dead transitions.
[2023-10-26 08:36:35,435 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 122 flow
[2023-10-26 08:36:35,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-26 08:36:35,435 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-26 08:36:35,436 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 234 transitions.
[2023-10-26 08:36:35,436 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5342465753424658
[2023-10-26 08:36:35,436 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 234 transitions.
[2023-10-26 08:36:35,436 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 234 transitions.
[2023-10-26 08:36:35,437 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:36:35,437 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 234 transitions.
[2023-10-26 08:36:35,437 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 117.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:35,439 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:35,439 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:35,440 INFO  L175             Difference]: Start difference. First operand has 30 places, 25 transitions, 94 flow. Second operand 2 states and 234 transitions.
[2023-10-26 08:36:35,440 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 122 flow
[2023-10-26 08:36:35,442 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 21 transitions, 122 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:36:35,443 INFO  L231             Difference]: Finished difference. Result has 27 places, 13 transitions, 58 flow
[2023-10-26 08:36:35,443 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=58, PETRI_PLACES=27, PETRI_TRANSITIONS=13}
[2023-10-26 08:36:35,444 INFO  L288   CegarLoopForPetriNet]: 30 programPoint places, -3 predicate places.
[2023-10-26 08:36:35,444 INFO  L495      AbstractCegarLoop]: Abstraction has has 27 places, 13 transitions, 58 flow
[2023-10-26 08:36:35,445 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:35,445 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:35,445 INFO  L209   CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:36:35,445 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-10-26 08:36:35,445 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:35,445 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:35,446 INFO  L85        PathProgramCache]: Analyzing trace with hash 1311987042, now seen corresponding path program 1 times
[2023-10-26 08:36:35,446 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:35,446 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663277115]
[2023-10-26 08:36:35,446 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:35,446 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:35,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:35,528 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:36:35,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:35,582 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:36:35,582 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:36:35,582 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:36:35,585 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:36:35,586 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:36:35,586 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:36:35,586 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:36:35,587 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-10-26 08:36:35,587 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-26 08:36:35,587 WARN  L233   ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:36:35,587 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances.
[2023-10-26 08:36:35,627 INFO  L144    ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions.
[2023-10-26 08:36:35,628 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 128 places, 125 transitions, 310 flow
[2023-10-26 08:36:35,918 INFO  L130       PetriNetUnfolder]: 93/1436 cut-off events.
[2023-10-26 08:36:35,918 INFO  L131       PetriNetUnfolder]: For 110/110 co-relation queries the response was YES.
[2023-10-26 08:36:35,919 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1547 conditions, 1436 events. 93/1436 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7244 event pairs, 23 based on Foata normal form. 0/1257 useless extension candidates. Maximal degree in co-relation 814. Up to 80 conditions per place. 
[2023-10-26 08:36:35,919 INFO  L82        GeneralOperation]: Start removeDead. Operand has 128 places, 125 transitions, 310 flow
[2023-10-26 08:36:35,922 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 119 places, 116 transitions, 292 flow
[2023-10-26 08:36:35,922 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:36:35,922 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 116 transitions, 292 flow
[2023-10-26 08:36:35,923 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 116 transitions, 292 flow
[2023-10-26 08:36:35,923 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 119 places, 116 transitions, 292 flow
[2023-10-26 08:36:36,099 INFO  L130       PetriNetUnfolder]: 93/1148 cut-off events.
[2023-10-26 08:36:36,105 INFO  L131       PetriNetUnfolder]: For 110/110 co-relation queries the response was YES.
[2023-10-26 08:36:36,106 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 1148 events. 93/1148 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5021 event pairs, 23 based on Foata normal form. 0/1001 useless extension candidates. Maximal degree in co-relation 670. Up to 80 conditions per place. 
[2023-10-26 08:36:36,117 INFO  L119        LiptonReduction]: Number of co-enabled transitions 4020
[2023-10-26 08:36:39,504 INFO  L134        LiptonReduction]: Checked pairs total: 3984
[2023-10-26 08:36:39,504 INFO  L136        LiptonReduction]: Total number of compositions: 105
[2023-10-26 08:36:39,505 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:36:39,505 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32cdd6cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:36:39,505 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:36:39,506 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-26 08:36:39,506 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:36:39,506 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:39,506 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-26 08:36:39,507 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:39,507 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:39,507 INFO  L85        PathProgramCache]: Analyzing trace with hash 38719, now seen corresponding path program 1 times
[2023-10-26 08:36:39,507 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:39,507 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217126783]
[2023-10-26 08:36:39,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:39,507 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:39,536 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:36:39,542 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:36:39,543 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:36:39,543 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217126783]
[2023-10-26 08:36:39,543 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217126783] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:36:39,543 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:36:39,543 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-26 08:36:39,543 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12475099]
[2023-10-26 08:36:39,543 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:36:39,544 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-26 08:36:39,544 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:36:39,544 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-26 08:36:39,544 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-26 08:36:39,545 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 112 out of 230
[2023-10-26 08:36:39,545 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 116 flow. Second operand  has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:39,545 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:36:39,545 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 230
[2023-10-26 08:36:39,545 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:36:40,045 INFO  L130       PetriNetUnfolder]: 1716/2809 cut-off events.
[2023-10-26 08:36:40,055 INFO  L131       PetriNetUnfolder]: For 1067/1067 co-relation queries the response was YES.
[2023-10-26 08:36:40,058 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 6062 conditions, 2809 events. 1716/2809 cut-off events. For 1067/1067 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 13808 event pairs, 1595 based on Foata normal form. 0/2745 useless extension candidates. Maximal degree in co-relation 1906. Up to 2602 conditions per place. 
[2023-10-26 08:36:40,061 INFO  L137   encePairwiseOnDemand]: 226/230 looper letters, 13 selfloop transitions, 0 changer transitions 9/24 dead transitions.
[2023-10-26 08:36:40,061 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 150 flow
[2023-10-26 08:36:40,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-26 08:36:40,062 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-26 08:36:40,062 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 249 transitions.
[2023-10-26 08:36:40,063 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5413043478260869
[2023-10-26 08:36:40,063 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 249 transitions.
[2023-10-26 08:36:40,063 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 249 transitions.
[2023-10-26 08:36:40,063 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:36:40,063 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 249 transitions.
[2023-10-26 08:36:40,064 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 124.5) internal successors, (249), 2 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:40,064 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:40,065 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:40,069 INFO  L175             Difference]: Start difference. First operand has 34 places, 28 transitions, 116 flow. Second operand 2 states and 249 transitions.
[2023-10-26 08:36:40,069 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 150 flow
[2023-10-26 08:36:40,072 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 150 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:36:40,073 INFO  L231             Difference]: Finished difference. Result has 31 places, 15 transitions, 75 flow
[2023-10-26 08:36:40,073 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=75, PETRI_PLACES=31, PETRI_TRANSITIONS=15}
[2023-10-26 08:36:40,074 INFO  L288   CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places.
[2023-10-26 08:36:40,074 INFO  L495      AbstractCegarLoop]: Abstraction has has 31 places, 15 transitions, 75 flow
[2023-10-26 08:36:40,075 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:40,089 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:40,089 INFO  L209   CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:36:40,089 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-10-26 08:36:40,090 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:40,090 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:40,091 INFO  L85        PathProgramCache]: Analyzing trace with hash 775303606, now seen corresponding path program 1 times
[2023-10-26 08:36:40,091 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:40,091 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058767548]
[2023-10-26 08:36:40,091 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:40,092 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:40,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:40,152 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:36:40,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:40,213 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:36:40,213 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:36:40,213 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:36:40,213 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:36:40,214 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:36:40,214 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:36:40,214 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:36:40,214 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-10-26 08:36:40,214 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-26 08:36:40,215 WARN  L233   ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:36:40,215 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances.
[2023-10-26 08:36:40,250 INFO  L144    ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions.
[2023-10-26 08:36:40,253 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 137 places, 133 transitions, 344 flow
[2023-10-26 08:36:40,880 INFO  L130       PetriNetUnfolder]: 207/2759 cut-off events.
[2023-10-26 08:36:40,881 INFO  L131       PetriNetUnfolder]: For 242/242 co-relation queries the response was YES.
[2023-10-26 08:36:40,883 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2991 conditions, 2759 events. 207/2759 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 18072 event pairs, 72 based on Foata normal form. 0/2417 useless extension candidates. Maximal degree in co-relation 1535. Up to 192 conditions per place. 
[2023-10-26 08:36:40,883 INFO  L82        GeneralOperation]: Start removeDead. Operand has 137 places, 133 transitions, 344 flow
[2023-10-26 08:36:40,888 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 128 places, 124 transitions, 326 flow
[2023-10-26 08:36:40,893 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:36:40,893 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 124 transitions, 326 flow
[2023-10-26 08:36:40,894 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 124 transitions, 326 flow
[2023-10-26 08:36:40,894 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 128 places, 124 transitions, 326 flow
[2023-10-26 08:36:41,399 INFO  L130       PetriNetUnfolder]: 207/2183 cut-off events.
[2023-10-26 08:36:41,399 INFO  L131       PetriNetUnfolder]: For 242/242 co-relation queries the response was YES.
[2023-10-26 08:36:41,401 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2415 conditions, 2183 events. 207/2183 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12705 event pairs, 72 based on Foata normal form. 0/1905 useless extension candidates. Maximal degree in co-relation 1247. Up to 192 conditions per place. 
[2023-10-26 08:36:41,416 INFO  L119        LiptonReduction]: Number of co-enabled transitions 5148
[2023-10-26 08:36:45,483 INFO  L134        LiptonReduction]: Checked pairs total: 5816
[2023-10-26 08:36:45,483 INFO  L136        LiptonReduction]: Total number of compositions: 112
[2023-10-26 08:36:45,484 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:36:45,484 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32cdd6cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:36:45,484 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:36:45,485 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-26 08:36:45,485 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:36:45,485 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:45,485 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-26 08:36:45,485 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:45,486 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:45,486 INFO  L85        PathProgramCache]: Analyzing trace with hash 46806, now seen corresponding path program 1 times
[2023-10-26 08:36:45,486 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:45,486 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976263066]
[2023-10-26 08:36:45,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:45,486 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:45,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:36:45,503 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:36:45,503 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:36:45,503 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976263066]
[2023-10-26 08:36:45,503 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976263066] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:36:45,503 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:36:45,504 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-26 08:36:45,504 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132317352]
[2023-10-26 08:36:45,504 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:36:45,504 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-26 08:36:45,504 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:36:45,504 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-26 08:36:45,505 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-26 08:36:45,505 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 118 out of 245
[2023-10-26 08:36:45,505 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 140 flow. Second operand  has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:45,505 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:36:45,505 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 245
[2023-10-26 08:36:45,506 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:36:46,852 INFO  L130       PetriNetUnfolder]: 5938/9021 cut-off events.
[2023-10-26 08:36:46,852 INFO  L131       PetriNetUnfolder]: For 3610/3610 co-relation queries the response was YES.
[2023-10-26 08:36:46,871 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 19504 conditions, 9021 events. 5938/9021 cut-off events. For 3610/3610 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 48798 event pairs, 5574 based on Foata normal form. 0/8893 useless extension candidates. Maximal degree in co-relation 6103. Up to 8442 conditions per place. 
[2023-10-26 08:36:46,898 INFO  L137   encePairwiseOnDemand]: 241/245 looper letters, 15 selfloop transitions, 0 changer transitions 10/27 dead transitions.
[2023-10-26 08:36:46,899 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 180 flow
[2023-10-26 08:36:46,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-26 08:36:46,899 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-26 08:36:46,900 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 264 transitions.
[2023-10-26 08:36:46,900 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5387755102040817
[2023-10-26 08:36:46,900 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 264 transitions.
[2023-10-26 08:36:46,900 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 264 transitions.
[2023-10-26 08:36:46,901 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:36:46,901 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 264 transitions.
[2023-10-26 08:36:46,901 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 132.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:46,902 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:46,903 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:46,903 INFO  L175             Difference]: Start difference. First operand has 38 places, 31 transitions, 140 flow. Second operand 2 states and 264 transitions.
[2023-10-26 08:36:46,903 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 180 flow
[2023-10-26 08:36:46,906 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:36:46,907 INFO  L231             Difference]: Finished difference. Result has 35 places, 17 transitions, 94 flow
[2023-10-26 08:36:46,907 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=35, PETRI_TRANSITIONS=17}
[2023-10-26 08:36:46,908 INFO  L288   CegarLoopForPetriNet]: 38 programPoint places, -3 predicate places.
[2023-10-26 08:36:46,908 INFO  L495      AbstractCegarLoop]: Abstraction has has 35 places, 17 transitions, 94 flow
[2023-10-26 08:36:46,908 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:46,908 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:46,908 INFO  L209   CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:36:46,913 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-10-26 08:36:46,913 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:46,913 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:46,914 INFO  L85        PathProgramCache]: Analyzing trace with hash -697006183, now seen corresponding path program 1 times
[2023-10-26 08:36:46,914 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:46,914 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906734352]
[2023-10-26 08:36:46,914 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:46,914 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:46,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:46,973 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:36:47,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:47,021 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:36:47,037 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:36:47,051 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:36:47,051 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:36:47,051 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:36:47,052 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:36:47,052 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:36:47,052 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-10-26 08:36:47,052 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-26 08:36:47,054 WARN  L233   ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:36:47,054 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances.
[2023-10-26 08:36:47,070 INFO  L144    ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions.
[2023-10-26 08:36:47,071 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 146 places, 141 transitions, 380 flow
[2023-10-26 08:36:48,274 INFO  L130       PetriNetUnfolder]: 465/5410 cut-off events.
[2023-10-26 08:36:48,285 INFO  L131       PetriNetUnfolder]: For 525/525 co-relation queries the response was YES.
[2023-10-26 08:36:48,305 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 5908 conditions, 5410 events. 465/5410 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 43898 event pairs, 201 based on Foata normal form. 0/4745 useless extension candidates. Maximal degree in co-relation 2977. Up to 448 conditions per place. 
[2023-10-26 08:36:48,306 INFO  L82        GeneralOperation]: Start removeDead. Operand has 146 places, 141 transitions, 380 flow
[2023-10-26 08:36:48,314 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 137 places, 132 transitions, 362 flow
[2023-10-26 08:36:48,329 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:36:48,329 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 132 transitions, 362 flow
[2023-10-26 08:36:48,330 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 132 transitions, 362 flow
[2023-10-26 08:36:48,330 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 137 places, 132 transitions, 362 flow
[2023-10-26 08:36:48,996 INFO  L130       PetriNetUnfolder]: 465/4258 cut-off events.
[2023-10-26 08:36:48,996 INFO  L131       PetriNetUnfolder]: For 525/525 co-relation queries the response was YES.
[2023-10-26 08:36:49,000 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 4756 conditions, 4258 events. 465/4258 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 31203 event pairs, 201 based on Foata normal form. 0/3721 useless extension candidates. Maximal degree in co-relation 2401. Up to 448 conditions per place. 
[2023-10-26 08:36:49,062 INFO  L119        LiptonReduction]: Number of co-enabled transitions 6384
[2023-10-26 08:36:53,091 INFO  L134        LiptonReduction]: Checked pairs total: 7633
[2023-10-26 08:36:53,092 INFO  L136        LiptonReduction]: Total number of compositions: 115
[2023-10-26 08:36:53,093 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:36:53,093 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32cdd6cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:36:53,093 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:36:53,094 INFO  L130       PetriNetUnfolder]: 0/3 cut-off events.
[2023-10-26 08:36:53,094 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:36:53,094 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:53,094 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-26 08:36:53,094 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:53,094 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:53,094 INFO  L85        PathProgramCache]: Analyzing trace with hash 55254, now seen corresponding path program 1 times
[2023-10-26 08:36:53,094 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:53,094 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190920496]
[2023-10-26 08:36:53,094 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:53,094 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:53,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:36:53,129 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:36:53,130 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:36:53,130 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190920496]
[2023-10-26 08:36:53,130 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190920496] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:36:53,130 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:36:53,130 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-26 08:36:53,130 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504870113]
[2023-10-26 08:36:53,131 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:36:53,131 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-26 08:36:53,131 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:36:53,131 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-26 08:36:53,131 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-26 08:36:53,132 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 124 out of 256
[2023-10-26 08:36:53,132 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 166 flow. Second operand  has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:53,132 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:36:53,132 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 256
[2023-10-26 08:36:53,132 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:36:56,565 INFO  L130       PetriNetUnfolder]: 20212/29057 cut-off events.
[2023-10-26 08:36:56,565 INFO  L131       PetriNetUnfolder]: For 11793/11793 co-relation queries the response was YES.
[2023-10-26 08:36:56,617 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 62922 conditions, 29057 events. 20212/29057 cut-off events. For 11793/11793 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 169523 event pairs, 19119 based on Foata normal form. 0/28802 useless extension candidates. Maximal degree in co-relation 19592. Up to 27410 conditions per place. 
[2023-10-26 08:36:56,664 INFO  L137   encePairwiseOnDemand]: 252/256 looper letters, 17 selfloop transitions, 0 changer transitions 11/30 dead transitions.
[2023-10-26 08:36:56,664 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 212 flow
[2023-10-26 08:36:56,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-26 08:36:56,665 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-26 08:36:56,666 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 279 transitions.
[2023-10-26 08:36:56,666 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.544921875
[2023-10-26 08:36:56,667 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 279 transitions.
[2023-10-26 08:36:56,667 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 279 transitions.
[2023-10-26 08:36:56,667 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:36:56,670 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 279 transitions.
[2023-10-26 08:36:56,670 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 139.5) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:56,673 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:56,674 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:56,674 INFO  L175             Difference]: Start difference. First operand has 42 places, 34 transitions, 166 flow. Second operand 2 states and 279 transitions.
[2023-10-26 08:36:56,674 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 212 flow
[2023-10-26 08:36:56,688 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 212 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:36:56,702 INFO  L231             Difference]: Finished difference. Result has 39 places, 19 transitions, 115 flow
[2023-10-26 08:36:56,702 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=19}
[2023-10-26 08:36:56,703 INFO  L288   CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places.
[2023-10-26 08:36:56,703 INFO  L495      AbstractCegarLoop]: Abstraction has has 39 places, 19 transitions, 115 flow
[2023-10-26 08:36:56,703 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:36:56,703 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:36:56,703 INFO  L209   CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:36:56,703 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-10-26 08:36:56,704 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:36:56,704 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:36:56,704 INFO  L85        PathProgramCache]: Analyzing trace with hash -150519787, now seen corresponding path program 1 times
[2023-10-26 08:36:56,704 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:36:56,704 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398187589]
[2023-10-26 08:36:56,704 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:36:56,704 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:36:56,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:56,791 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:36:56,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:36:56,867 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:36:56,869 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:36:56,870 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:36:56,870 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:36:56,870 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:36:56,870 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:36:56,870 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:36:56,870 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-10-26 08:36:56,871 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-26 08:36:56,947 WARN  L233   ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:36:56,947 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances.
[2023-10-26 08:36:56,963 INFO  L144    ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2023-10-26 08:36:56,965 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 155 places, 149 transitions, 418 flow
[2023-10-26 08:36:58,600 INFO  L130       PetriNetUnfolder]: 1043/10749 cut-off events.
[2023-10-26 08:36:58,600 INFO  L131       PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES.
[2023-10-26 08:36:58,617 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 11834 conditions, 10749 events. 1043/10749 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 104850 event pairs, 522 based on Foata normal form. 0/9441 useless extension candidates. Maximal degree in co-relation 5892. Up to 1024 conditions per place. 
[2023-10-26 08:36:58,617 INFO  L82        GeneralOperation]: Start removeDead. Operand has 155 places, 149 transitions, 418 flow
[2023-10-26 08:36:58,668 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 146 places, 140 transitions, 400 flow
[2023-10-26 08:36:58,668 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:36:58,668 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 140 transitions, 400 flow
[2023-10-26 08:36:58,669 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 140 transitions, 400 flow
[2023-10-26 08:36:58,669 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 146 places, 140 transitions, 400 flow
[2023-10-26 08:37:00,171 INFO  L130       PetriNetUnfolder]: 1043/8445 cut-off events.
[2023-10-26 08:37:00,171 INFO  L131       PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES.
[2023-10-26 08:37:00,184 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 9530 conditions, 8445 events. 1043/8445 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 75131 event pairs, 522 based on Foata normal form. 0/7393 useless extension candidates. Maximal degree in co-relation 4740. Up to 1024 conditions per place. 
[2023-10-26 08:37:00,269 INFO  L119        LiptonReduction]: Number of co-enabled transitions 7728
[2023-10-26 08:37:03,598 INFO  L134        LiptonReduction]: Checked pairs total: 9083
[2023-10-26 08:37:03,598 INFO  L136        LiptonReduction]: Total number of compositions: 120
[2023-10-26 08:37:03,599 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:37:03,599 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32cdd6cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:37:03,599 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:37:03,600 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-26 08:37:03,600 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:37:03,600 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:37:03,600 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-26 08:37:03,600 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:37:03,600 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:37:03,600 INFO  L85        PathProgramCache]: Analyzing trace with hash 64123, now seen corresponding path program 1 times
[2023-10-26 08:37:03,600 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:37:03,600 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017285151]
[2023-10-26 08:37:03,600 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:37:03,601 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:37:03,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:37:03,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:37:03,619 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:37:03,619 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017285151]
[2023-10-26 08:37:03,619 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017285151] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:37:03,619 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:37:03,619 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-26 08:37:03,619 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165358185]
[2023-10-26 08:37:03,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:37:03,620 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-26 08:37:03,620 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:37:03,620 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-26 08:37:03,620 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-26 08:37:03,620 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 130 out of 269
[2023-10-26 08:37:03,621 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 194 flow. Second operand  has 2 states, 2 states have (on average 131.0) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:37:03,621 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:37:03,621 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 269
[2023-10-26 08:37:03,621 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:37:13,909 INFO  L130       PetriNetUnfolder]: 68034/93749 cut-off events.
[2023-10-26 08:37:13,909 INFO  L131       PetriNetUnfolder]: For 37812/37812 co-relation queries the response was YES.
[2023-10-26 08:37:14,090 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 203320 conditions, 93749 events. 68034/93749 cut-off events. For 37812/37812 co-relation queries the response was YES. Maximal size of possible extension queue 1827. Compared 580035 event pairs, 64754 based on Foata normal form. 0/93238 useless extension candidates. Maximal degree in co-relation 63105. Up to 88994 conditions per place. 
[2023-10-26 08:37:14,156 INFO  L137   encePairwiseOnDemand]: 265/269 looper letters, 19 selfloop transitions, 0 changer transitions 12/33 dead transitions.
[2023-10-26 08:37:14,156 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 33 transitions, 246 flow
[2023-10-26 08:37:14,156 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-26 08:37:14,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-26 08:37:14,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 294 transitions.
[2023-10-26 08:37:14,157 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5464684014869888
[2023-10-26 08:37:14,158 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 294 transitions.
[2023-10-26 08:37:14,158 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 294 transitions.
[2023-10-26 08:37:14,158 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:37:14,158 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 294 transitions.
[2023-10-26 08:37:14,159 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:37:14,160 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:37:14,161 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:37:14,161 INFO  L175             Difference]: Start difference. First operand has 46 places, 37 transitions, 194 flow. Second operand 2 states and 294 transitions.
[2023-10-26 08:37:14,161 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 33 transitions, 246 flow
[2023-10-26 08:37:14,182 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 33 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:37:14,182 INFO  L231             Difference]: Finished difference. Result has 43 places, 21 transitions, 138 flow
[2023-10-26 08:37:14,182 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=138, PETRI_PLACES=43, PETRI_TRANSITIONS=21}
[2023-10-26 08:37:14,185 INFO  L288   CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places.
[2023-10-26 08:37:14,185 INFO  L495      AbstractCegarLoop]: Abstraction has has 43 places, 21 transitions, 138 flow
[2023-10-26 08:37:14,185 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 131.0) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:37:14,185 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:37:14,185 INFO  L209   CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:37:14,185 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-10-26 08:37:14,185 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:37:14,186 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:37:14,186 INFO  L85        PathProgramCache]: Analyzing trace with hash 711457822, now seen corresponding path program 1 times
[2023-10-26 08:37:14,186 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:37:14,186 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543159326]
[2023-10-26 08:37:14,186 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:37:14,186 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:37:14,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:37:14,250 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:37:14,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:37:14,301 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:37:14,303 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:37:14,303 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:37:14,303 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:37:14,303 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:37:14,303 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:37:14,303 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:37:14,304 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-10-26 08:37:14,304 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-26 08:37:14,306 WARN  L233   ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:37:14,306 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances.
[2023-10-26 08:37:14,337 INFO  L144    ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions.
[2023-10-26 08:37:14,339 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 164 places, 157 transitions, 458 flow
[2023-10-26 08:37:18,189 INFO  L130       PetriNetUnfolder]: 2325/21528 cut-off events.
[2023-10-26 08:37:18,190 INFO  L131       PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES.
[2023-10-26 08:37:18,226 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 23905 conditions, 21528 events. 2325/21528 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 244980 event pairs, 1291 based on Foata normal form. 0/18937 useless extension candidates. Maximal degree in co-relation 11816. Up to 2304 conditions per place. 
[2023-10-26 08:37:18,227 INFO  L82        GeneralOperation]: Start removeDead. Operand has 164 places, 157 transitions, 458 flow
[2023-10-26 08:37:18,288 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 155 places, 148 transitions, 440 flow
[2023-10-26 08:37:18,305 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-10-26 08:37:18,305 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 148 transitions, 440 flow
[2023-10-26 08:37:18,306 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 148 transitions, 440 flow
[2023-10-26 08:37:18,306 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 155 places, 148 transitions, 440 flow
[2023-10-26 08:37:21,041 INFO  L130       PetriNetUnfolder]: 2325/16920 cut-off events.
[2023-10-26 08:37:21,042 INFO  L131       PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES.
[2023-10-26 08:37:21,066 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 19297 conditions, 16920 events. 2325/16920 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 176188 event pairs, 1291 based on Foata normal form. 0/14841 useless extension candidates. Maximal degree in co-relation 9512. Up to 2304 conditions per place. 
[2023-10-26 08:37:21,176 INFO  L119        LiptonReduction]: Number of co-enabled transitions 9180
[2023-10-26 08:37:25,152 INFO  L134        LiptonReduction]: Checked pairs total: 10687
[2023-10-26 08:37:25,152 INFO  L136        LiptonReduction]: Total number of compositions: 128
[2023-10-26 08:37:25,153 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-10-26 08:37:25,154 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32cdd6cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-10-26 08:37:25,154 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2023-10-26 08:37:25,154 INFO  L130       PetriNetUnfolder]: 0/2 cut-off events.
[2023-10-26 08:37:25,154 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-10-26 08:37:25,154 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:37:25,154 INFO  L209   CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-10-26 08:37:25,155 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:37:25,155 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:37:25,155 INFO  L85        PathProgramCache]: Analyzing trace with hash 73494, now seen corresponding path program 1 times
[2023-10-26 08:37:25,155 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:37:25,155 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913336180]
[2023-10-26 08:37:25,155 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:37:25,155 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:37:25,182 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-10-26 08:37:25,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-10-26 08:37:25,186 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-10-26 08:37:25,186 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913336180]
[2023-10-26 08:37:25,187 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913336180] provided 1 perfect and 0 imperfect interpolant sequences
[2023-10-26 08:37:25,187 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-10-26 08:37:25,187 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-10-26 08:37:25,191 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887824144]
[2023-10-26 08:37:25,191 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-10-26 08:37:25,191 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-10-26 08:37:25,191 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-10-26 08:37:25,192 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-10-26 08:37:25,192 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-10-26 08:37:25,192 INFO  L478   CegarLoopForPetriNet]: Number of universal loopers: 136 out of 285
[2023-10-26 08:37:25,192 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 224 flow. Second operand  has 2 states, 2 states have (on average 137.0) internal successors, (274), 2 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:37:25,192 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-10-26 08:37:25,193 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 285
[2023-10-26 08:37:25,193 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-10-26 08:37:59,116 INFO  L130       PetriNetUnfolder]: 227012/302505 cut-off events.
[2023-10-26 08:37:59,131 INFO  L131       PetriNetUnfolder]: For 120151/120151 co-relation queries the response was YES.
[2023-10-26 08:37:59,869 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 657094 conditions, 302505 events. 227012/302505 cut-off events. For 120151/120151 co-relation queries the response was YES. Maximal size of possible extension queue 5194. Compared 1960222 event pairs, 217171 based on Foata normal form. 0/301481 useless extension candidates. Maximal degree in co-relation 203694. Up to 288618 conditions per place. 
[2023-10-26 08:37:59,971 INFO  L137   encePairwiseOnDemand]: 281/285 looper letters, 21 selfloop transitions, 0 changer transitions 13/36 dead transitions.
[2023-10-26 08:37:59,972 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 36 transitions, 282 flow
[2023-10-26 08:37:59,972 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-10-26 08:37:59,972 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-10-26 08:37:59,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions.
[2023-10-26 08:37:59,975 INFO  L523   CegarLoopForPetriNet]: DFA transition density 0.5421052631578948
[2023-10-26 08:37:59,975 INFO  L72            ComplementDD]: Start complementDD. Operand 2 states and 309 transitions.
[2023-10-26 08:37:59,975 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 2 states and 309 transitions.
[2023-10-26 08:37:59,976 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-10-26 08:37:59,976 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 309 transitions.
[2023-10-26 08:37:59,995 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 3 states, 2 states have (on average 154.5) internal successors, (309), 2 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:37:59,996 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 3 states, 3 states have (on average 285.0) internal successors, (855), 3 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:37:59,997 INFO  L81            ComplementDD]: Finished complementDD. Result  has 3 states, 3 states have (on average 285.0) internal successors, (855), 3 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:37:59,997 INFO  L175             Difference]: Start difference. First operand has 50 places, 40 transitions, 224 flow. Second operand 2 states and 309 transitions.
[2023-10-26 08:37:59,997 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 36 transitions, 282 flow
[2023-10-26 08:38:00,077 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 36 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-10-26 08:38:00,079 INFO  L231             Difference]: Finished difference. Result has 47 places, 23 transitions, 163 flow
[2023-10-26 08:38:00,079 INFO  L271   CegarLoopForPetriNet]: {PETRI_ALPHABET=285, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=163, PETRI_PLACES=47, PETRI_TRANSITIONS=23}
[2023-10-26 08:38:00,080 INFO  L288   CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places.
[2023-10-26 08:38:00,081 INFO  L495      AbstractCegarLoop]: Abstraction has has 47 places, 23 transitions, 163 flow
[2023-10-26 08:38:00,081 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 137.0) internal successors, (274), 2 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-10-26 08:38:00,081 INFO  L201   CegarLoopForPetriNet]: Found error trace
[2023-10-26 08:38:00,082 INFO  L209   CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-10-26 08:38:00,082 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-10-26 08:38:00,082 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] ===
[2023-10-26 08:38:00,082 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2023-10-26 08:38:00,082 INFO  L85        PathProgramCache]: Analyzing trace with hash 1571944609, now seen corresponding path program 1 times
[2023-10-26 08:38:00,082 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-10-26 08:38:00,083 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577779479]
[2023-10-26 08:38:00,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-10-26 08:38:00,083 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-10-26 08:38:00,167 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:38:00,168 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-10-26 08:38:00,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-10-26 08:38:00,228 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-10-26 08:38:00,228 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-10-26 08:38:00,229 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining)
[2023-10-26 08:38:00,229 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining)
[2023-10-26 08:38:00,229 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining)
[2023-10-26 08:38:00,229 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining)
[2023-10-26 08:38:00,230 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining)
[2023-10-26 08:38:00,230 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-10-26 08:38:00,230 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-10-26 08:38:00,230 WARN  L233   ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-10-26 08:38:00,230 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances.
[2023-10-26 08:38:00,264 INFO  L144    ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions.
[2023-10-26 08:38:00,265 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 173 places, 165 transitions, 500 flow
